| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text. |
| 3 | * Here we can supply some information useful to userland. |
| 4 | */ |
| 5 | |
| 6 | #include <linux/uts.h> |
| 7 | #include <linux/version.h> |
| 8 | #include <linux/build-salt.h> |
| 9 | |
| 10 | #define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type) \ |
| 11 | .section name, flags; \ |
| 12 | .balign 4; \ |
| 13 | .long 1f - 0f; /* name length */ \ |
| 14 | .long 3f - 2f; /* data length */ \ |
| 15 | .long type; /* note type */ \ |
| 16 | 0: .asciz vendor; /* vendor name */ \ |
| 17 | 1: .balign 4; \ |
| 18 | 2: |
| 19 | |
| 20 | #define ASM_ELF_NOTE_END \ |
| 21 | 3: .balign 4; /* pad out section */ \ |
| 22 | .previous |
| 23 | |
| 24 | ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0) |
| 25 | .long LINUX_VERSION_CODE |
| 26 | ASM_ELF_NOTE_END |
| 27 | |
| 28 | BUILD_SALT |